This is another great one from www.radiolab.org… Everyone knows how trees grow – right? Sunlight + CO2 + Photosynthesis = Carbon (in the form of sugars) + O2 We’ll it turns out that this is only half the story. A tree made only of carbon wouldn’t grow more than a foot high before flopping over like a dying tulip. The structural elements that build trunk and limbs come in as nutrients through a tree’s root system – just like we eat vitamins and minerals to build healthy teeth and…read more